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Limited MHC class I intron 2 repertoire variation in bonobos

Common chimpanzees ( Pan troglodytes ) experienced a selective sweep, probably caused by a SIV-like virus, which targeted their MHC class I repertoire. Based on MHC class I intron 2 data analyses, this selective sweep took place about 2–3 million years ago. As a consequence, common chimpanzees have... Full description

Journal Title: Immunogenetics 2017, Vol.69(10), pp.677-688
Main Author: Groot, Natasja
Other Authors: Heijmans, Corrine , Helsen, Philippe , Otting, Nel , Pereboom, Zjef , Stevens, Jeroen , Bontrop, Ronald
Format: Electronic Article Electronic Article
Language: English
Subjects:
MHC
ID: ISSN: 0093-7711 ; E-ISSN: 1432-1211 ; DOI: 10.1007/s00251-017-1010-x
Link: http://dx.doi.org/10.1007/s00251-017-1010-x
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recordid: springer_jour10.1007/s00251-017-1010-x
title: Limited MHC class I intron 2 repertoire variation in bonobos
format: Article
creator:
  • Groot, Natasja
  • Heijmans, Corrine
  • Helsen, Philippe
  • Otting, Nel
  • Pereboom, Zjef
  • Stevens, Jeroen
  • Bontrop, Ronald
subjects:
  • Pan paniscus
  • Pan troglodytes
  • mtDNA
  • MHC
  • Selective sweep
ispartof: Immunogenetics, 2017, Vol.69(10), pp.677-688
description: Common chimpanzees ( Pan troglodytes ) experienced a selective sweep, probably caused by a SIV-like virus, which targeted their MHC class I repertoire. Based on MHC class I intron 2 data analyses, this selective sweep took place about 2–3 million years ago. As a consequence, common chimpanzees have a skewed MHC class I repertoire that is enriched for allotypes that are able to recognise conserved regions of the SIV proteome. The bonobo ( Pan paniscus ) shared an ancestor with common chimpanzees approximately 1.5 to 2 million years ago. To investigate whether the signature of this selective sweep is also detectable in bonobos, the MHC class I gene repertoire of two bonobo panels comprising in total 29 animals was investigated by Sanger sequencing. We identified 14 Papa-A , 20 Papa-B and 11 Papa-C alleles, of which eight, five and eight alleles, respectively, have not been reported previously. Within this pool of MHC class I variation, we recovered only 2 Papa-A , 3 Papa-B and 6 Papa-C intron 2 sequences. As compared to humans, bonobos appear to have an even more diminished MHC class I intron 2 lineage repertoire than common chimpanzees. This supports the notion that the selective sweep may have predated the speciation of common chimpanzees and bonobos. The further reduction of the MHC class I intron 2 lineage repertoire observed in bonobos as compared to the common chimpanzee may be explained by a founding effect or other subsequent selective processes.
language: eng
source:
identifier: ISSN: 0093-7711 ; E-ISSN: 1432-1211 ; DOI: 10.1007/s00251-017-1010-x
fulltext: fulltext
issn:
  • 1432-1211
  • 14321211
  • 0093-7711
  • 00937711
url: Link


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titleLimited MHC class I intron 2 repertoire variation in bonobos
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subjectPan paniscus ; Pan troglodytes ; mtDNA ; MHC ; Selective sweep
descriptionCommon chimpanzees ( Pan troglodytes ) experienced a selective sweep, probably caused by a SIV-like virus, which targeted their MHC class I repertoire. Based on MHC class I intron 2 data analyses, this selective sweep took place about 2–3 million years ago. As a consequence, common chimpanzees have a skewed MHC class I repertoire that is enriched for allotypes that are able to recognise conserved regions of the SIV proteome. The bonobo ( Pan paniscus ) shared an ancestor with common chimpanzees approximately 1.5 to 2 million years ago. To investigate whether the signature of this selective sweep is also detectable in bonobos, the MHC class I gene repertoire of two bonobo panels comprising in total 29 animals was investigated by Sanger sequencing. We identified 14 Papa-A , 20 Papa-B and 11 Papa-C alleles, of which eight, five and eight alleles, respectively, have not been reported previously. Within this pool of MHC class I variation, we recovered only 2 Papa-A , 3 Papa-B and 6 Papa-C intron 2 sequences. As compared to humans, bonobos appear to have an even more diminished MHC class I intron 2 lineage repertoire than common chimpanzees. This supports the notion that the selective sweep may have predated the speciation of common chimpanzees and bonobos. The further reduction of the MHC class I intron 2 lineage repertoire observed in bonobos as compared to the common chimpanzee may be explained by a founding effect or other subsequent selective processes.
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titleLimited MHC class I intron 2 repertoire variation in bonobos
descriptionCommon chimpanzees ( Pan troglodytes ) experienced a selective sweep, probably caused by a SIV-like virus, which targeted their MHC class I repertoire. Based on MHC class I intron 2 data analyses, this selective sweep took place about 2–3 million years ago. As a consequence, common chimpanzees have a skewed MHC class I repertoire that is enriched for allotypes that are able to recognise conserved regions of the SIV proteome. The bonobo ( Pan paniscus ) shared an ancestor with common chimpanzees approximately 1.5 to 2 million years ago. To investigate whether the signature of this selective sweep is also detectable in bonobos, the MHC class I gene repertoire of two bonobo panels comprising in total 29 animals was investigated by Sanger sequencing. We identified 14 Papa-A , 20 Papa-B and 11 Papa-C alleles, of which eight, five and eight alleles, respectively, have not been reported previously. Within this pool of MHC class I variation, we recovered only 2 Papa-A , 3 Papa-B and 6 Papa-C intron 2 sequences. As compared to humans, bonobos appear to have an even more diminished MHC class I intron 2 lineage repertoire than common chimpanzees. This supports the notion that the selective sweep may have predated the speciation of common chimpanzees and bonobos. The further reduction of the MHC class I intron 2 lineage repertoire observed in bonobos as compared to the common chimpanzee may be explained by a founding effect or other subsequent selective processes.
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abstractCommon chimpanzees ( Pan troglodytes ) experienced a selective sweep, probably caused by a SIV-like virus, which targeted their MHC class I repertoire. Based on MHC class I intron 2 data analyses, this selective sweep took place about 2–3 million years ago. As a consequence, common chimpanzees have a skewed MHC class I repertoire that is enriched for allotypes that are able to recognise conserved regions of the SIV proteome. The bonobo ( Pan paniscus ) shared an ancestor with common chimpanzees approximately 1.5 to 2 million years ago. To investigate whether the signature of this selective sweep is also detectable in bonobos, the MHC class I gene repertoire of two bonobo panels comprising in total 29 animals was investigated by Sanger sequencing. We identified 14 Papa-A , 20 Papa-B and 11 Papa-C alleles, of which eight, five and eight alleles, respectively, have not been reported previously. Within this pool of MHC class I variation, we recovered only 2 Papa-A , 3 Papa-B and 6 Papa-C intron 2 sequences. As compared to humans, bonobos appear to have an even more diminished MHC class I intron 2 lineage repertoire than common chimpanzees. This supports the notion that the selective sweep may have predated the speciation of common chimpanzees and bonobos. The further reduction of the MHC class I intron 2 lineage repertoire observed in bonobos as compared to the common chimpanzee may be explained by a founding effect or other subsequent selective processes.
copBerlin/Heidelberg
pubSpringer Berlin Heidelberg
doi10.1007/s00251-017-1010-x
pages677-688
date2017-10